Tympan feed-gage for printing-presses.



PATENTED APR. 12, 1904.

I. H. MILLS.

TYMPAN FEED GAGE FOR PRINTING-PRESSES.

APPLICATION FILED FEB. 1a, 1903.

.30 MODEL.

UNITED STATES Patented' 4 m 1 19041 PATENT OFFIQ'ELL IRWI H. MILLS, or oINoINNATI, oHIo, ASSIGNOR To WILLIAM J.

' BAUM-AN. OF DAYTON. KENTUCKY. I

TYM'PAN-FEED-QGAGE FOR PBINTING-PRESSES.

SPECIFICATION forming part of Letters 1 a.te1 1't No.-75i,2 1"2, dated April 12, 1904.

I Application filed February 13, 1905. Serial No. 143,191. (No m'odel.)

Tool] w/mm it may aoncern." I I Be it known that I, IRWIN H. MILLS, a citi zen of the United States of America, and a resident of Cincinnati, in the county of Hamthis character of a simple and inexpensive nature and of a strong, compact, and durable structure which shallbe capable of convenient attachment to the tympan-sheet and also of ready adjustment-when so attached to accommod'atework of different kinds.

The lnvention'consists In oertaln-novel features of the construction, combmation, and arrangement of'the several parts of the improved gage-pin whereby certain important advantages are attainedand the deviceismade,

simpler, cheaper, andotherwise better adapted and more convenient for use than various other forms of similar devices heretofore in use, all'as will be hereinafter fully set forth. The novel features of the invention will be carefully defined in the claims In'the accompanying drawings, which serve to il'lustratemy invention, Figurevl is a perspective view drawn to a small scale and showing a fragment of the tympan-sheet of a press with gage-pins embodying the invention applied thereto in position for use, and Fig.- 2

i I is a topviewdrawn to a larger scale and showing one of the gage-pins constructedaccording to the invention detached from the tympan-sheet. Fig. 3 is a side or edge view showing the improved gage-pin as illustrated in Fig. 2, andFig. 4 is a front end view of the same. Fig. 5 is a sectional view taken through the tympan sheet and showing in side or edge elevation the improved gage-pin carried thereby and adjusted to one position; and Fig. 61s I a view similarto Fig.5, but showing'a different adjustment of the improved gage-pm.

Fig. 7 is a detail view showing detached the phant tongue forming a part of the improved gage-pin.

As shown in the views, 1 indicates the tym- I pan-sheet of a press, to which the improved gage-pin is shown applied for use, and 2 indicates'as a whole the gage-pin, which is formed, as herein shown, from an elongated strip or piece 'ofthin and elastic sheet metal, one end portion 3 of-which is made pointed and. is arranged to project beyondthe body portion of the device, so as to be in convenient position for being pushed through the tympan-sheet 1 for securingthe device in position thereon.

The metal strip from which the gage-pin is produced is bent, as shown at 5, to produce two'elastic plies or. members, a lower member 4, extended from the pointed portion .3 to the bend 5' on the bottom ofthe pin and extended. i

at an angle to said portion 3, as shown in Figs. 3 and 5, and a central spring member 6, lapped upon the top of the lower member 4 and extended rearwardly above the same to but not over the pointed portion 3.

At the rear end of the central member 6 the metal piece or strip is formed with another bend 7, whereby an upper spring member 8 is produced, which latter member -8 is extended forwardly above the central member 6 and has its forward end arranged to projectfslightlyiin front of the bend 5, as shown in Figs. 1, 3, 5, and 6, said forward end of the upper member being provided with lateral enlargements or wings 9 9,, extended outward beyond opposite sides of the narrower rear portion of the device and separated from each other at the front end of member 8 by an opening 10, centrally produced between them The lateral wings or enlargements 9 9 of the front end of the upper member 8of the improved gage-pin are provided at their front edges with downwardly-bent parts 11, the ,lower ends of which are pointed, as clearly shown on the drawings, to produce prongs.

adapted for engagement with the tympansheet 1 for holding the gage-pin in ad usted position thereon, and said prongs 11 lLare separated from each other by. a slotted. openin g 12, extended down between them and formmg an extension of the opening 10 between the wings a 9. above described. i

In the opening 12 between the prongs ll 11 is arranged the pro ecting end of an ad ustable pliant tongue 13. the forward end of which is made rounded and is adapted to PIOJQCB more or less far in front of the prongs 11 11, while the rear end thereof isirranged to extend between the upper member 8 and the central member (3 of the device and lsformed with an enlargement 1-l, the opposite side portions 15 15 of which are arranged to pro ect beyond the sides of the upper member 8 and are bent up and around the upper edge portions there? of, as shown in the drawings, to adapt the tongue 13 for sliding engagement lengthwise upon said upper member 8. The form of thetongue 13 will be clearly seen in Fig. '7, which is a detail view showing this part of the device detached.

1n the use of the improved gage-pin constructed in accordance with my invention it will be understood that since the device is formed from elastic or spring material the sev-' eral members at, 6, and 8 will be held elastically pressedtoward each other in the positions shown in Fig. 3 and may have their lapped surfaces more or less nearly in contact or flush upon one another, as may be desired, and when the pointed end 3 of the device is pushed through the tympan-sheet, as shown'in Figs. 5 and 6, the lower memberst and the central member-6 will actto grip the said tympansheet between them, so as to hold the device frictionally in any position in which it may be adjusted.

the tympan-sheet, as shown in Fig. 6, or it may be pushed thereunder to any less extent, as indicated in Fig. 5, for example, this adjustment of the device permitting the bearingsurface produced by the prongs or pointed projections 11-11 at the front end of the gagepin to be set in position to receive and engage the edge of the sheet to be printed, as indicated at .1 in Fla. 1, so as to permitsuch sheet to be held in proper position during the operation of the press.

When the pointed end 3 of the gage-pin has been pushed through the tympan-sheet 1 and a said pin has been set in adjusted posit-ion thereon, the point-s or prongs 11 11 at the front end of the gage-pin will be pressed into close engagement with said tympan-sheet in such a way as to hold the gage-pin'securely in its adjusted position and prevent it from being moved laterally or forward or backward, and the elasticity of the upper member 8 and cen- I tral member 6 will act to hold the said points or prongs pressed iirmlyupon the tympansheet. as will be readily understood.

When the gage-pins have been secured in adjusted positions upon the tympan sheet. so

that their bearlnfii surfaees formed of the front sides of the...p ms 11 11 are in position to In this way the lower member-L of the device may be pushed wholly beneath I properly engage the sheets to be printed. as

above described, the tongues 13 may be employed to prevent theedges of the sheets from slipping out of engagement with said'bearingsurfaces when engaged thereon For this purpose the fore end of the tongue 13 may beadjustedto project more or l'essfar beyond the front end of the upper memberS of the gagepin, accordingly as the printed form is more or less close to the edge of the sheet, and said end of the tongue 13 is capable, owing to its pliability. of being bent close to or farther away from the tympan-sh'eet 1, as indicated inFigs. 6 and 5, respectively, according to the requirements of special purposes or I cases. The openings 10 and 12 at the fore end of the l device permit the pliant metal of the tongue 13 to be readily bent into the desired contour and have a range of front the full depth of said openings 10 and 12.

i From the abovedescription of my improvements it will beseen that the gagepin constructed according to my. invention is of an extremely simple and inexpensive nature and is very strong, compact, and durable in structureand is also capable of agreat variety of adjustmentsso as to render it suited'for work of different kinds; so that the device is especially well adapted for use, and it will also be obvious from the abovedescriptionthatthe device is capable of considerable modification without material departure from the principles and spirit ,of'the inventiom'and for this reason I do not wish to be understood as limlt-mg myself to the preciseform and arrangement of the several parts of the device as herein set forth in carrying out my invention.

Having thus described. my invention, what I claim, and desire to secure by Letters Patent, is

'1', A gage-pin or the like formed of a piece of spring metal bent upon itself to produce three members one. above another, the lower member. having means for. attachment to a tympan-sheet and the upper member having a downwardly-directed part forming a, hearing to be engaged by a sheet tobe printed and, a pliant tongue adjustably held tothe mem:

front of the said bearing. 3

2. A-gage-pin or the like formed of a piece of spring metal bent upon itself to produce three members one above another, the lower member having its free end rearwardly extended and pointed to be passed throng-ha tympan-sheet and said lower member and also the member above it being adapted to press elastically on the tympan-sheet to hold the device in position thereon and the upper member having its forward endprovided with a downwardly-directed part forming a bearing to be engaged by a sheet to be printed.

3. A gage-pin or the like formed of a piece of metal bent upon itself to form three members, the lower member having at its rear end bers and having an end portion extended in v a point to be passed through a tympan-sheet and the forward end of the u-ppermember being bent downward and provided with pointed parts spaced apart and adapted to bear on a tympan-sheet, and a pliant tongue held for movement on the gage with an end passed throughthe space between said pointed parts.

a. A gage-pin or the like formed of a piece of spring metal bent upon itself to produce three members one above another, the lower member having a pointed rear end to be passed through a tympan-sheet' and the upper-member having its forward 'end provided with a of said bearing.

Signed at Cincinnati, Ohio, this 4th day of February, 1903. p

IRWIN H. MILLS. Witnesses:

JOHN ELIAS JONES, L. M. J ONES. 

